Fixify Appliance Repair

I called this company based on the reviews to put a water line from the fridge to the water tap (tap was already installed by the builder / plumbing work was done by the builder). Sam provided me with a quote which I didn't negotiate and he scheduled a visit to do the job. I took the invoice and paid the full price + HST. He also put a fifteen days warranty for parts and labour. The job was done on Aug 3rd and on Aug 13th early morning I called Sam to inform that the water was dripping from the one end of the water pipe he installed and it went through the 2nd floor to the ground floor and damaged one door and drywalls. He promised to come on Monday Aug 16th and one hour before the scheduled time he called me and demanded extra charges for the visit to fix the issue. I told him that this is unfair as this is still in warranty and probably water started dripping the day he performed the job. The water line is behind the fridge and we only realized when it reached the bottom level and we saw it on the floor and on walls. He said he gave me a good prize and now wants more money to fix his own poorly performed work, though I didn't negotiate to get the better quote and paid him the price he quoted. He refused to come without extra charges. This company seems very unprofessional and does not care for customers. I hope this review will help and prevent many others from having similar potential situations from this company.